2135681644280 has 64 divisors (see below), whose sum is σ = 4876838850240. Its totient is φ = 841642289152.

The previous prime is 2135681644253. The next prime is 2135681644321. The reversal of 2135681644280 is 824461865312.

It is a super-2 number, since 2×2135681644280² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659819 + ... + 2169498.

It is an arithmetic number, because the mean of its divisors is an integer number (76200607035).

Almost surely, 2^{2135681644280} is an apocalyptic number.

2135681644280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135681644280 is an abundant number, since it is smaller than the sum of its proper divisors (2741157205960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135681644280 is a wasteful number, since it uses less digits than its factorization.

2135681644280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829608 (or 2829604 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 2135681644280 in words is "two trillion, one hundred thirty-five billion, six hundred eighty-one million, six hundred forty-four thousand, two hundred eighty".